19851223

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{23831}}^1$

素因数の和:23862

約数の個数: 12

約数和(自身を含む): 24451632

約数和(自身を除く): 4600409

約数列:

[1, 7, 17, 49, 119, 833, 23831, 166817, 405127, 1167719, 2835889, 19851223]

約数ペア:

[(1, 19851223), (7, 2835889), (17, 1167719), (49, 405127), (119, 166817), (833, 23831)]